glusterd: Replace libglusterfs lists with liburcu lists

This patch replaces usage of the libglusterfs lists data structures and
API in glusterd with the lists data structures and API from liburcu. The
liburcu data structes and APIs are a drop-in replacement for
libglusterfs lists.

All usages have been changed to keep the code consistent, and free from
confusion.

NOTE: glusterd_conf_t->xprt_list still uses the libglusterfs data
structures and API, as it holds rpc_transport_t objects, which is not a
part of glusterd and is not being changed in this patch.

This change was developed on the git branch at [1]. This commit is a
combination of the following commits on the development branch.
  6dac576 Replace libglusterfs lists with liburcu lists
  a51b5ab Fix compilation issues
  d98a06f Fix merge issues
  a5d918e Remove merge remnant
  1cca113 More style cleanup
  1917be3 Address review comments on 9624/1
  8d10f13 Use cds_lists for glusterd_svc_t
  524ad5d Add rculist header in glusterd-conn-helper.c
  646f294 glusterd: add list_add_order API honouring rcu

[1]: https://github.com/kshlm/glusterfs/tree/urcu

Change-Id: Ic613c5b6e496a677b9d3de15fc042a0492109fb0
BUG: 1191030
Signed-off-by: Kaushal M <kaushal@redhat.com>
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/9624
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-by: Gaurav Kumar Garg <ggarg@redhat.com>
Reviewed-by: Anand Nekkunti <anekkunt@redhat.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.h b/xlators/mgmt/glusterd/src/glusterd-op-sm.h
index e306ccc6bde..0ca1b5bb1dc 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.h
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.h
@@ -70,7 +70,7 @@ typedef enum glusterd_op_sm_event_type_ {
 
 
 struct glusterd_op_sm_event_ {
-        struct list_head                list;
+        struct cds_list_head            list;
         void                            *ctx;
         glusterd_op_sm_event_type_t     event;
         uuid_t                          txn_id;
@@ -96,13 +96,13 @@ struct glusterd_op_info_ {
         int32_t                         brick_pending_count;
         int32_t                         op_count;
         glusterd_op_t                   op;
-        struct list_head                op_peers;
+        struct cds_list_head            op_peers;
         void                            *op_ctx;
         rpcsvc_request_t                *req;
         int32_t                         op_ret;
         int32_t                         op_errno;
         char                            *op_errstr;
-        struct  list_head               pending_bricks;
+        struct  cds_list_head           pending_bricks;
 };
 
 typedef struct glusterd_op_info_ glusterd_op_info_t;
@@ -239,7 +239,7 @@ char*
 glusterd_op_sm_event_name_get (int event);
 int32_t
 glusterd_op_bricks_select (glusterd_op_t op, dict_t *dict, char **op_errstr,
-                           struct list_head *selected, dict_t *rsp_dict);
+                           struct cds_list_head *selected, dict_t *rsp_dict);
 int
 glusterd_brick_op_build_payload (glusterd_op_t op, glusterd_brickinfo_t *brickinfo,
                                  gd1_mgmt_brick_op_req **req, dict_t *dict);